US Patent Issued to Northrop Grumman Systems on Oct. 21 for "External hydrostatic pressure-resistant pressure vessel" (Maryland Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,099, issued on Oct. 21, was assigned to Northrop Grumman Systems Corp. (Falls Church, Va.).

"External hydrostatic pressure-resistant pressure vessel" was invented by Herbert B. Volker (Annapolis, Md.) and Daniel H. Vogel (Woodstock, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure vessel is provided including a housing capable of withstanding external hydrostatic pressures having an internal cavity defining a first opening permitting access to the internal cavity. A plug is disposed in a plug region near the first opening. A gland seal is disposed adjacent to the plug and a piston is disposed adjacent to the gland seal. A first and seco...